[PATCH] Bug 21233 - Catch more cases in SLP vectorizer

[Sanjin Sijaric]

Hi,

 

The attached patch addresses bug #21233.  I didn't see a way to vectorize
the attached test case without using SCEV-AA along with a small change in
SLP vectorizer to retrieve the base pointer using SCEV analysis.

 

Can someone please have a look?  Is it safe to use SCEV-AA, or should I
pursue a different approach?

 

Thanks,

Sanjin

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